微信扫码支付模式一长短连接都不行？短链接 商户后台返回的字段不合法，长链接系统繁忙，求问为啥。我订单都下好了。返回了成功

{"return_code":"SUCCESS","return_msg":"OK","appid":"wx16cb5a501e876d70","mch_id":"1498837182","nonce_str":"8ArffgSttfzBxltt","sign":"54A26183FF831CBACA28BBFEC500FFA4","result_code":"SUCCESS","prepay_id":"wx121334406349070d6c0a4f8c1538607400","trade_type":"NATIVE","code_url":"weixin:\/\/wxpay\/bizpayurl?pr=gWdoz4M"}

这是返回给我的数据，状态都正常